CVE-2026-48956 Joomla! Project CVE debrief

Who should care

Administrators and users of Joomla systems, as well as security teams and vulnerability management teams, should be aware of this vulnerability and take necessary precautions to prevent exploitation. This vulnerability could potentially lead to unauthorized access to sensitive information.

Technical summary

The vulnerability is caused by an improper access check, allowing users to display a list of modules in the frontend. This could potentially lead to unauthorized access to sensitive information. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

Medium

Recommended defensive actions

• Review and update access controls for module display
• Monitor system logs for suspicious activity
• Implement additional security measures to prevent unauthorized access
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-07-07T19:16:54.313Z and has not been modified since then. The NVD entry is currently Received. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The vulnerability is caused by an improper access check, allowing users to display a list of modules in the frontend.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.